Home / 81,888.03-122,830.66-36,884.35

Finding the Fourth Proportional to 81,888.03, 122,830.66 and 36,884.35

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Solution

The fourth proportional to 81,888.03, 122,830.66 and 36,884.35 is: 55,325.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,888.03 : 122,830.66 = 36,884.35 : x
  2. Step 2: Convert to fraction form
    81,888.03/122,830.66 = 36,884.35/x
  3. Step 3: Cross multiply
    81,888.03x = 122,830.66 × 36,884.35
  4. Step 4: Simplify right side
    81,888.03x = 4,530,529,054.17
  5. Step 5: Solve for x
    x = 4,530,529,054.17/81,888.03
  6. Step 6: Final answer
    x = 55,325.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.